Why the wave trap is put in Y phse only in switchyard?why not in other phases?

Why the wave trap is put in Y phse only in switchyard?why
not in other phases?

Question Posted / sachin

Why the wave trap is put in Y phse only in switchyard?why not in other phases?..

Answer / star

Because Y phase is less prone to faults. B phase is prone
to earth fault and R phase is prone to lightning. So Y
phase is more safe.

Is This Answer Correct ?

9 Yes

21 No

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